Cooking Appliance Locking Device with Automatic and Manual Unlocking
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Solution Overview
Problem
Existing cooking appliances with a base member and upper member fail to provide ergonomic and safe operation, as they often require both hands to close the upper member, lack reliable locking mechanisms, and do not allow for easy opening in case of power interruptions.
Innovation Solution
A cooking appliance with a locking device that automatically unlocks upon predetermined conditions and includes a manual actuating device for independent operation, ensuring the upper member can be closed and opened safely and efficiently, even in the absence of power, using a mechanical engagement system and urging device for secure closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking device is added to secure the upper member to the base member, then reliability of closure is improved, but device complexity increases
Solution Approach 1:
The locking device automatically engages when the upper member is closed onto the base member without requiring manual intervention. The system uses the closing motion itself to trigger the locking mechanism, making the locking process self-service and eliminating the need for separate manual locking operations.
Solution Approach 2:
The patent replaces complex manual locking mechanisms with an automated system that uses electromagnetic actuators or spring-loaded mechanical components to engage and disengage the locking device automatically based on sensor input or predetermined conditions.
2Ease of operation
If manual actuating device is added for one-handed operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The manual actuating device is designed as a separate, extractable component that can be operated independently with one hand. The actuating mechanism is positioned and shaped to be grasped and manipulated easily, allowing users to open or close the upper member without requiring two hands or complex finger movements.
3Productivity
If automatic actuating device is added for automatic unlocking, then productivity is improved, but device complexity increases
Solution Approach 1:
The automatic actuating device is pre-programmed or pre-configured to unlock the upper member automatically when predetermined conditions are met, such as completion of a cooking cycle, detection of door opening, or receipt of a control signal. This preliminary programming allows the system to act automatically without real-time human intervention.
4Ease of operation
If locking device with automatic unlocking is implemented, then ease of operation is improved, but reliability worsens due to power dependence
Solution Approach 1:
The system incorporates backup mechanisms or energy storage components (such as springs or capacitors) that can maintain the locking function or enable manual operation even when power is interrupted. This beforehand cushioning ensures that the loss of power does not immediately compromise the reliability of the locking device.
Data Source
AI summary
A cooking appliance comprising a base member, an upper member and a cooking chamber defined between the base member and the upper member, wherein the upper member is displaceable between a closed position, in which the upper member is closed on the base member and access to the cooking chamber is prevented, and an open position, in which access to the cooking chamber is permitted. The cooking appliance comprises a locking device displaceable from a locking condition, in which it prevents the upper member from being displaced from the closed position to the open position, and an unlocking condition in which it allows the upper member to be displaced from the closed position to the open position. The cooking appliance comprises an automatic actuating device for automatically taking the locking device in the unlocking condition upon a predetermined condition is reached, and a further manual actuating device for manually taking the locking device in the unlocking condition.